import axios from 'axios'
import Rsa from "@/utils/rsa.js";
import Aes from "@/utils/aes.js";
import fc from "@/utils/funct.js";
import {
  ElNotification,
  ElMessageBox,
  ElMessage,
  ElLoading
} from 'element-plus'
import {
  getToken
} from '@/utils/auth'
import errorCode from '@/utils/errorCode'
import {
  tansParams,
  blobValidate
} from '@/utils/ruoyi'
import cache from '@/plugins/cache'
import {
  saveAs
} from 'file-saver'
import useUserStore from '@/store/modules/user'

let downloadLoadingInstance;
// 是否显示重新登录
export let isRelogin = {
  show: false
};

axios.defaults.headers['Content-Type'] = 'application/json;charset=utf-8'
// 对应国际化资源文件后缀
axios.defaults.headers['Content-Language'] = 'zh_CN'
// 创建axios实例
const service = axios.create({
  // axios中请求配置有baseURL选项，表示请求URL公共部分
  baseURL: import.meta.env.VITE_APP_BASE_API,
  // 超时
  timeout: 10000
})

// 获取加密请求相关的数据
const getEncryptData = function (params) {
  let aesStr = '';
  // 生成一个随机16位串
  let randStr = fc.createRandStr();
  // 设置请求头headers参数，进行rsa加密
  let secret = Rsa.encrypt(randStr,
  import.meta.env.VITE_APP_PUBLIC_KEY);
  // 包裹加密对象，进行aes加密
  let str = typeof params == 'string' ? params : JSON.stringify(params);
  aesStr = Aes.encrypt(str, randStr);

  // console.log('请求的加密参数，和原始参数类型：',aesStr,typeof params)
  return {
    params: aesStr,
    secret: secret
  };
};
// request拦截器
service.interceptors.request.use(config => {

  if (config.url.indexOf('dispatch/') !== -1) config.baseURL = config.baseURL.replace('11000', '11001')
  // 是否需要设置 token
  const isToken = (config.headers || {}).isToken === false
  // 是否需要防止数据重复提交
  const isRepeatSubmit = (config.headers || {}).repeatSubmit === false
  if (getToken() && !isToken) {
    config.headers['Authorization'] = 'Bearer ' + getToken() // 让每个请求携带自定义token 请根据实际情况自行修改
  }
  let data = {};
 
  // get请求映射params参数
  if (config.method === 'get') {
    config.params = typeof config.params == 'undefined' ? '' : config.params; 
    let paramStr = tansParams(config.params);
    let data = getEncryptData(paramStr);
    config.headers.secret = data.secret
    let url = config.url + '?p=' + data.params;
    // url = url.slice(0, -1);
    config.params = {};
    config.url = url;
  } else {
    if (config.headers['Content-Type'] == 'application/x-www-form-urlencoded') {
      let formParams = tansParams(config.data);
      data = getEncryptData(formParams);
      config.data = 'p=' + data.params
    } else if(config.headers['Content-Type'] == 'multipart/form-data'){
      let formData ={};
      let secretStr =  tansParams(config.data);
      data = getEncryptData(secretStr);
      formData.p = data.params;
      formData.file = config.data.file;
      config.data = formData
    }else {
      console.log('请求前参数json：',config.data)
      data = getEncryptData(config.data);
      config.data = data.params
    }
    config.headers.secret = data.secret
  }

  // if (!isRepeatSubmit && (config.method === 'post' || config.method === 'put')) {
  //   const requestObj = {
  //     url: config.url,
  //     data: typeof config.data === 'object' ? JSON.stringify(config.data) : config.data,
  //     time: new Date().getTime()
  //   }
  //   const sessionObj = cache.session.getJSON('sessionObj')
  //   if (sessionObj === undefined || sessionObj === null || sessionObj === '') {
  //     cache.session.setJSON('sessionObj', requestObj)
  //   } else {
  //     const s_url = sessionObj.url;                // 请求地址
  //     const s_data = sessionObj.data;              // 请求数据
  //     const s_time = sessionObj.time;              // 请求时间
  //     const interval = 1000;                       // 间隔时间(ms)，小于此时间视为重复提交
  //     if (s_data === requestObj.data && requestObj.time - s_time < interval && s_url === requestObj.url) {
  //       const message = '数据正在处理，请勿重复提交';
  //       console.warn(`[${s_url}]: ` + message)
  //       return Promise.reject(new Error(message))
  //     } else {
  //       cache.session.setJSON('sessionObj', requestObj)
  //     }
  //   }
  // }
  
  return config
}, error => {
  console.log(error)
  Promise.reject(error)
})

// 响应拦截器
service.interceptors.response.use(res => {
    if (typeof (res.data) == 'string') {
      let secret = res.headers.secret;
      // 进行rsa解密
      let randStr = Rsa.decrypt(secret,
        import.meta.env.VITE_APP_PUBLIC_KEY);
      // 进行aes解密
      let data = Aes.decrypt(res.data, randStr);
      res.data = fc.checkJson(data) == true ? JSON.parse(data) : data;
      console.log('响应处理后，请求接口和响应结果:', res.request.responseURL, res.data)
    }

    // 未设置状态码则默认成功状态
    const code = res.data.code || 200;
    // 获取错误信息
    const msg = errorCode[code] || res.data.msg || errorCode['default']
    // 二进制数据则直接返回
    if (res.request.responseType === 'blob' || res.request.responseType === 'arraybuffer') {
      return res.data
    }
    if (code === 401) {
      if (!isRelogin.show) {
        isRelogin.show = true;
        ElMessageBox.confirm('登录状态已过期，您可以继续留在该页面，或者重新登录', '系统提示', {
          confirmButtonText: '重新登录',
          cancelButtonText: '取消',
          type: 'warning'
        }).then(() => {
          isRelogin.show = false;
          useUserStore().logOut().then(() => {
            location.href =
              import.meta.env.VITE_APP_CONTEXT_PATH + 'index';
          })
        }).catch(() => {
          isRelogin.show = false;
        });
      }
      return Promise.reject('无效的会话，或者会话已过期，请重新登录。')
    } else if (code === 500) {
      ElMessage({
        message: msg,
        type: 'error'
      })
      return Promise.reject(new Error(msg))
    } else if (code === 601) {
      ElMessage({
        message: msg,
        type: 'warning'
      })
      return Promise.reject(new Error(msg))
    } else if (code !== 200) {
      ElNotification.error({
        title: msg
      })
      return Promise.reject('error')
    } else {
      return Promise.resolve(res.data)
    }
  },
  error => {
    console.log('err' + error)
    let {
      message
    } = error;
    if (message == "Network Error") {
      message = "后端接口连接异常";
    } else if (message.includes("timeout")) {
      message = "系统接口请求超时";
    } else if (message.includes("Request failed with status code")) {
      message = "系统接口" + message.substr(message.length - 3) + "异常";
    }
    ElMessage({
      message: message,
      type: 'error',
      duration: 5 * 1000
    })
    return Promise.reject(error)
  }
)

// 通用下载方法
export function download(url, params, filename, config) {
  downloadLoadingInstance = ElLoading.service({
    text: "正在下载数据，请稍候",
    background: "rgba(0, 0, 0, 0.7)",
  })
  return service.post(url, params, {
    // transformRequest: [(params) => {
    //   console.log('transformRequest',params)
    //   return tansParams(params)
    // }],
    headers: {
      'Content-Type': 'application/x-www-form-urlencoded'
    },
    responseType: 'blob',
    ...config
  }).then(async (data) => {
    const isBlob = blobValidate(data);
    if (isBlob) {
      const blob = new Blob([data])
      saveAs(blob, filename)
    } else {
      const resText = await data.text();
      const rspObj = JSON.parse(resText);
      const errMsg = errorCode[rspObj.code] || rspObj.msg || errorCode['default']
      ElMessage.error(errMsg);
    }
    downloadLoadingInstance.close();
  }).catch((r) => {
    console.error(r)
    ElMessage.error('下载文件出现错误，请联系管理员！')
    downloadLoadingInstance.close();
  })
}


// 通用导入文件方法
export function importFile(url, params, config) {
  return service.post(url, params, {
    // transformRequest: [(params) => {
    //   console.log('transformRequest',params)
    //   return tansParams(params)
    // }],
    headers: {
      'Content-Type': 'multipart/form-data'
    }
  })
}

export default service
